Volumetric measuring device

ABSTRACT

A volumetric measuring device for measuring a body part. The device includes a fluid container filled with fluid. The fluid container has a body part opening for permitting the insertion of a body part and a displaced fluid opening for permitting the flow of fluid that has been displaced as the result of inserting the body part. A fluid-tight barrier covers the body part opening and maintains a fluid-tight seal over the body part opening while the body part is being inserted. The volumetric measurement is determined by measuring the amount of displaced fluid after the insertion of the body part through the body part opening. In a preferred embodiment, the body part being measured is an erect penis.

The present invention relates to volumetric measuring devices, and inparticular, to measuring devices for measuring the size of a body part.The present invention is a continuation-in-part of U.S. patentapplication Ser. No. 10/995,663, filing date Nov. 22, 2004, soon toissue on Dec. 12, 2006 as U.S. Pat. No. 7,147,609, the specification ofwhich is incorporated herein by reference.

BACKGROUND OF THE INVENTION

Throughout history, there has been discussion and focus on the humanmale sex organ. Generally, having a large penis is seen as moremasculine and manly than having a small penis. Well-endowed malepornography stars are looked at by many with admiration and envy due tothe size of their penis.

In recent times, society has shown a strong resurgence in interestregarding matters pertaining to the penis. Viagra® (Viagra is aregistered trademark of the Pfizer Corporation and refers to a compoundfor treating erectile dysfunction) has enjoyed tremendous success sinceits recent entry into the marketplace. Once marketed solely to older menhaving trouble achieving and maintaining an erection, Viagra® is nowbeing marketed to and bought by younger men looking to enhance their sexlives. Moreover, just as a woman can undergo surgery for breastaugmentation, so can a man undergo surgery to increase the size of hispenis. The Internet is brimming with ads that market or sell productswhich claim to increase penis size.

Size Matters!

One of the most popular comments of recent days is “Size Matters!”, butwhat does this really mean? With all the recent attention show toincreasing penis size, there is a remarkable lack of convenient andaccurate methods for measuring the penis. Most men merely take a rulerand measure the size of their penis in inches. However, to adequatelydescribe the size of a penis the length alone is not enough. Nor is itenough to know the diameter at an arbitrary point. The penis is notshaped like a true cylinder, but rather it has a more complicated shape.Therefore, a method for measuring the size of a penis needs to accountfor the unusual shape and size of the human penis.

What is needed is a better device for measuring the size of body part.

SUMMARY OF THE INVENTION

The present invention provides a volumetric measuring device formeasuring a body part. The device includes a fluid container filled withfluid. The fluid container has a body part opening for permitting theinsertion of a body part and a displaced fluid opening for permittingthe flow of fluid that has been displaced as the result of inserting thebody part. A fluid-tight barrier covers the body part opening andmaintains a fluid-tight seal over the body part opening while the bodypart is being inserted. The volumetric measurement is determined bymeasuring the amount of displaced fluid after the insertion of the bodypart through the body part opening. In a preferred embodiment, the bodypart being measured is an erect penis.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a preferred fluid container.

FIG. 2 shows a side view of a preferred embodiment of the presentinvention.

FIG. 2A shows a preferred fluid-tight barrier.

FIGS. 3-6 show a preferred method for utilizing the present invention.

FIGS. 7-8 show another preferred embodiment of the present invention.

FIGS. 9A-9C show another preferred embodiment of the present invention.

FIGS. 10-14 show another preferred method for utilizing the presentinvention.

FIG. 15 shows another preferred embodiment of the present invention.

FIG. 16 shows another preferred embodiment of the present invention.

FIG. 17 shows another preferred embodiment of the present invention.

FIG. 18 shows another preferred embodiment of the present invention.

FIG. 19 shows another preferred embodiment of the present invention.

FIGS. 20-22 show another preferred embodiment of the present invention.

FIGS. 23-30 describe a sequence of operation of the preferred embodimentshown in FIGS. 20-22.

FIGS. 31-35 show another preferred embodiment of the present invention.

FIGS. 36-37 show another preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First PreferredEmbodiment Preferred Fluid Container

FIG. 1 shows preferred fluid container 2. Fluid container 2 hasdisplaced fluid opening 3 and body part opening 4. Fluid container 2preferably has a height of approximately 13 inches and a diameter nearopening 3 of approximately 4 inches. The diameter towards the base offluid container 2 near opening 4 is approximately 6 inches.

Preferred Scale

As shown in FIG. 2, fluid container 2 has scale 5 for measuring thefluid inside fluid container 2. As shown by referring to FIG. 2, fluidcontainer 2 is capable of holding approximately 2800 cc of fluid.

Watertight Barrier

FIG. 2 also shows watertight barrier 5 stretched over body part opening4. Watertight barrier 5 forms a watertight seal over opening 4. In apreferred embodiment, watertight barrier 5 is a latex condom. Byutilizing a condom as watertight barrier 5, multiple users can eachsafely use the device by supplying their own personal condom, Theopening of the condom fits over circular lip 4A surrounding opening 4.For example, FIG. 2A shows a detailed view of watertight barrier 5stretched over lip 4A of opening 4 to form the watertight seal.

Utilization of a Preferred Embodiment of the Present Invention

In FIG. 3, a user is filling fluid container 2 with water from hose 6.Fluid container 2 is resting on table 7.

In FIG. 4, water has been filled to the top of fluid container 2.

In FIG. 5, a user has inserted his erect penis into fluid container 2through opening 4 (FIG. 1) while laying on his back. As indicated by thearrows, water inside fluid container 2 is overflowing. Watertightbarrier 5 stretches as it receives the erect penis. Watertight barrier 5also retains its watertight seal over opening 4 so that no water leaksout through opening 4.

In FIG. 6, fluid container 2 has been placed back down on top of table7. An ample portion of the fluid has spilled out through opening 3 andthe surface of the water level inside fluid container 2 has droppedsignificantly. By referring to scale 55, the user can determine thatapproximately 864 cc of water poured out though opening 3 while hiserect penis was inserted. Therefore the user can conclude that his penishas a volume of approximately 864 cc.

Second Preferred Embodiment

FIG. 7 shows another preferred embodiment of the present invention. Inthis embodiment, door 8 is attached to fluid container 2 at hingeconnection 9. By utilizing door 8, a user is able to carry fluidcontainer 2 with him while it is filled with water. For example, FIG. 8shows door 8 latched shut against fluid container 2 at latch 9. Door 8is supporting the weight of the water inside fluid container 2 as itexerts force on watertight barrier. When the user is ready to insert hiserect penis into fluid container 2, the user opens door 8 and insertshis penis in a manner similar to that described above.

Third Preferred Embodiment

A third preferred embodiment is shown in FIGS. 9A-9C. Measuring device11 has fluid container 11 b that is preferably approximately 13 inches×3inches×3 inches and preferably holds approximately 1900 cc of fluid.Measuring device 11 is preferably fabricated from plastic and includessee-through window 21 having scale 22.

Measuring device 11 includes hose 13 connected to its top and vent 12also on its top, In a preferred embodiment, hose 13 is threaded onto thetop of measuring device 11 and hose 13 includes valve 19. Door 14 isconnected to the side via hinge 15 and is latched shut with latch 16.Door 14 covers watertight barrier 17.

Utilization of the Third Preferred Embodiment

In FIG. 10, the user has removed hose 13 from displaced fluid opening 18of measuring device 11. Door 14 and vent 12 are closed. The user isadding water to measuring device 11 through opening 18.

In FIG. 11, the user has attached hose 13 to measuring device 11 overopening 18. The user has also opened valve 19.

In FIG. 12, the user has unlatched and then opened door 4. The user thenhas inserted his erect penis into measuring device 11 through the bodypart opening covered by watertight barrier 17. Water inside measuringdevice 11 is displaced by the user's erect penis and it flows outthrough open valve 19 and then through hose 13 into sink 20.

In FIG. 13, the user has closed valve 19 and opened vent 12. The userhas opened vent 12 to break any vacuum that may result as the erectpenis is removed from measuring device 11.

In FIG. 14, the user has removed his erect penis from measuring device11. Water still inside hose 13 is prevented from flowing back intomeasuring device 11 by closed valve 19. Door 14 has been shut andlatched. The water remaining inside measuring device 11 is measured onscale 22. The user determines that since 947 cc of water was displacedby his erect penis, it can therefore be concluded that his penis has adisplacement of 947 cc.

Fourth Preferred Embodiment

A fourth preferred embodiment of the present invention is shown in FIG.15. The fourth preferred embodiment is very similar to the thirdpreferred embodiment with an exception being that sink 20 (FIG. 12) hasbeen replaced with portable fluid receptacle 25. For example, FIG. 15shows hose 13 connected at one end to measuring device 11 and its otherend connected to fluid receptacle 25. With the fourth preferredembodiment, the user does not have to be near a sink to utilize thepresent invention. Water displaced from measuring device 11 will bedirected to fluid receptacle 25 via hose 13.

Fifth Preferred Embodiment

A fifth preferred embodiment is shown in FIG. 17. The embodiment shownin FIG. 17 is very similar to earlier preferred embodiments with anexception being that scale 30 replaced the earlier described scales.

For example, in FIG. 16 measuring device 11 utilizes scale 32 to measurethe displacement of a user's erect penis. A very well endowed human malehaving an erect penis having length 12 inches and diameter of 2.5 inchesmay have an erect penis that has a volume of approximately 964 cubiccentimeters. In comparison, a more typical male may have an erect penissize of approximately 6 inches and diameter of 1.75 inches. This moretypical male will then have an erect penis that has a volume ofapproximately 236 cubic centimeters.

Applicant has noted that it is potentially confusing to compare orcategorize human male penis size if the scale being utilized is cubiccentimeters. Therefore, Applicant has devised his own scale which herefers to as “penile displacement number” or “pdn”. Preferably, thescale is designed so that the average male has a pdn of 100. Bydesigning the scale so that the average size penis is 100 pdn, it makesthis preferred embodiment more appealing to the average user. Applicantbelieves that it is more of a positive reinforcement to the user to saythat he has a “100 pdn” rather than saying that he has a “23 pdn” or a“24 pdn”. Hence, in one embodiment, assuming that the volumetricdisplacement of the average erect penis is 236 cc, a preferredconversion factor between penile displacement number and cubiccentimeters is 1 pdn=2.36 cc. Using this conversion factor awell-endowed male porn star having a penis volume of 964 cubiccentimeters would instead refer to his erect penis as having a pdn of408.5. Or, he might say that his penis size is 408.5 pdn. In comparison,an average male having a penis volume of 236 cubic centimeters wouldinstead refer to his erect penis as having a pdn of 100. Or, he mightsay that his penis size is 100 pdn.

By utilizing the above-described preferred pdn scale, the average maleis shown to have penis size equal to 100 pdn. It is then very easy tosee how the average male compares to a very well endowed male. In theexample above, it is immediately apparent that the male having a 408.5pdn has a penis size that is approximately 308.5 percent above the sizeof the very well endowed male. Also, for example, a male with a penissize 10 percent above average could brag to his friends and lovers thathe has a pdn of 110.

In FIG. 17, scale 30 is written in pdn units so that no mathematicalconversion is necessary. For example by directly reading scale 30, theuser can determine that the size of the erect penis is 408.5 pdn.

Sixth Preferred Embodiment

A sixth preferred embodiment is shown in FIG. 18. Although the abovepreferred embodiments described the utilization of the present inventionto measure the size of an erect penis, the volumetric displacement ofother body parts can likewise be determined with the present invention.For example, in FIG. 18 a user has inserted her breast 43 into measuringdevice 41. Water inside measuring device 41 is overflowing throughdisplaced fluid opening 45. Watertight barrier 42 forms a watertightseal between the water in measuring device 41 and breast 43. The openingin this device is similar to the opening in the earlier describeddevices except the diameter is larger at approximately 8 inches.

To measure the volumetric displacement of her breast, the user removesher breast from measuring device 41 and then places measuring device 41on a flat surface. The user then refers to scale 44 to determine theamount of water displaced. The amount of water displaced is equivalentto the volumetric displacement of her breast.

Seventh Preferred Embodiment

FIGS. 20 and 21 show perspective views of a seventh preferred embodimentof the present invention. FIG. 22 shows a simplified side view of theseventh preferred embodiment.

An explanation of the utilization of the seventh preferred embodimentcan be seen by reference to FIGS. 23 to 30.

In FIG. 23, seal plug 301 (FIG. 22) has been removed and water is beingpoured into fill chamber 302. Opening 303 is large enough to allow airout during filling.

In FIG. 24, seal plug 301 has been placed over opening 303 to seal fillchamber 302. Also, condom 304 has been placed over the opening ofinsertion chamber 305

In FIG. 25, retaining ring 306 has been snap fitted over the opening ofinsertion chamber 305. Retaining ring 306 functions to hold condom 304in place over the opening of insertion chamber 305 while the user'serect penis is inserted into the condom and into insertion chamber 305.

In FIG. 26, the user has inserted his erect penis into insertion chamber305. Stop cock valve 306 has been opened by the user allowing water toflow from fill chamber 302 into insertion chamber 305. Duckbill checkvalve 307 allows air into fill chamber 302 during the filling process.Nylon ball valve 308 on top of insertion chamber 305 allows air toescape the insertion chamber. When water reaches the ball inside ballvalve 308, the ball will float up and seal the vent orifice.

In FIG. 27, the user has closed stop cock valve 306 after insertionchamber 305 is filled with water.

In FIG. 28, the user has opened stop cock valve 309 to drain insertionchamber 305 into drain chamber 310. Drain port 311 is sealed with sealplug 312.

In FIG. 29, insertion chamber 305 has been completely drained. The userhas closed stop cock valve 309. The user has removed his erect penis.

In FIG. 30, the user has turned measuring device 330 on its side. Thevolume of the erect penis can be determined by looking at the height ofthe water in fill chamber 302 against calibrated scale 315.

After reading the measurement, the user preferably removes retainingring 306 and removes and discards used condom 304. The user then removesseal plugs 301 and 312. The user drains filling chamber 302 and drainchamber 310 and cleans the unit. Then the user reattaches seal plugs 301and 312.

Eighth Preferred Embodiment

FIG. 31 shows another preferred embodiment of the present invention inwhich pneumatic measuring device 220 utilizes air displacement todetermine the volume of a user's body part. Displacement sleeve 212 isconnected to pump unit 211 via pneumatic hose 218. In one preferredembodiment, displacement sleeve 212 is a collapsible, foldable andflexible heavy vinyl displacement sleeve of sufficient size so that auser can insert his body part.

In FIG, 32, a user has inserted his arm into displacement sleeve 212.Cinch strap 217 has been pulled tight to provide an air tight sealaround the user's arm. Pump unit 211 has been turned “on” causingsignals to be sent from microcontroller 213 to positive displacement airpump 227 (FIG. 34) and to timer 228. Pump 227 has begun to pump air intodisplacement sleeve 212 at a steady rate. Because displacement sleeve212 is flexible and collapsible, at first the air being pumped intodisplacement sleeve 212 will not increase the pressure inside thedisplacement sleeve. Rather, it will just be filling the displacementsleeve up with air. The pressure inside the displacement sleeve willremain at about 14.7 psia (0 psig) until the displacement sleeve isfilled with air, Microcontroller 213 has been programmed to start timer228 as soon as pressure gage 212 sends a signal that the pressure insidedisplacement sleeve 212 is greater than 0 psig.

In FIG. 33, pressure gage 214 indicates that the pressure insidedisplacement sleeve 212 is 3 psig and a corresponding signal is sentfrom pressure gage 214 to microcontroller 213. Microcontroller 213 hasbeen programmed to “stop” pump 227 and timer 228 when the pressureinside displacement sleeve 212 is equal to 3 psig. Microcontroller 213stops pump 227 and timer 228. Microcontroller 213 has sent a signal todisplay screen 215 representative of the volume of the user's arm.Accordingly, display screen 215 displays 454 cubic inches.

Microcontroller

In the preferred embodiment shown in FIG. 31, pneumatic measuring device220 includes microcontroller 213 (see also FIG. 34). Preferably,microcontroller 213 is programmed to calculate the volume of a user'sbody part based on time differential.

For example, assume positive displacement air pump 227 pumps air at aconstant rate (for example, 35 liters/minute).

Pump Rate=3.5 L/min=213.5 cubic inches/min

From the Ideal Gas Law,

PV=nRT, where P=Pressure; V=Volume of container, n=quantity of gas;R=constant; T=temperatureP ₁ V ₁ /n ₁ RT ₁ =P ₂ V ₂ /n ₂ RT ₂

P₁=pressure inside displacement sleeve 212 prior to being pressurized bypositive displacement air pump 227=14.7 psia

P₂=pressure inside displacement sleeve 212 after being pressurized bypositive displacement air pump 227=17.7 psia

n₁=quantity of air inside displacement sleeve 212 prior to beingpressurized by positive displacement air pump 227, where the length ofthe Displacement Sleeve is 32 inches and its diameter is 8 inches.

=1608 cubic inches

Solve for n₂=quantity of air inside displacement sleeve 212 after beingpressurized by positive displacement air pump 227

For an empty Displacement Sleeve, V₁=V₂; and T₁=T₂,Therefore, P ₁ /n ₁ =P ₂ /n ₂

n₂=n₁(P₂/P₁)=(1608 cubic inches)(17.7 psia/14.7 psia)=1936 cubic inches.

Therefore, 1936 cu. in.−1608 cu. in.=328 cu. in. of air was added. Sincepump 227 pumps air at a rate of 213.5 cu. in./min, it will take(328/213.5) min=92 secs to pressurize an empty Displacement Sleeve.

If an object or body part is placed inside displacement sleeve 227 thatis ½ of the volume of displacement sleeve 227, we have: n₁=804 cubicinches.Therefore, P ₁ /n ₁ =P ₂ /n ₂

n₂=n₁(P₂/P₁)=(804 cubic inches)(17.7 psia/14.7 psia)=968 cubic inches.

Therefore, 968 cu. in.−804 cu. in.=164 cu. in. of air was added, Sincepump 227 pumps air at a rate of 2135 cu. in./min, it will take(164/213.5) min=46 secs to pressurize an empty Displacement Sleeve.

It is seen that there is a linear relationship between the volume ofspace being pressurized and the amount of time that is required topressurize the space to a predetermined pressure, in this case 3 psig(17.7 psia). The linear relationship is illustrated graphically in FIG.35.

Microcontroller 213 is preferably programmed to utilize this linearrelationship to automatically calculate the volume of the user's bodypart based on the time required for the displacement sleeve to bepressurized to 3 psig. For example, if it takes 26 seconds topressurized displacement sleeve 227 to 3 psig, then the volume of thebody part inside displacement sleeve=1608 cubic inches−(26 seconds)(1608cubic inches/92 seconds)=1608 cubic inches−454 cubic inches=1154 cubicinches.

Ninth Preferred Embodiment

A ninth preferred embodiment of the present invention is shown in FIG.36. In FIG. 36, pump unit 211 has been replaced with hand held air pump232.

Air pump 232 pumps 6 cubic inches of air per pump.

From the Ideal Gas Law,

PV=nRT, where P=Pressure; V=Volume of container, n=quantity of gas;R=constant; T=temperatureP ₁ V ₁ /n ₁ RT ₁ =P ₂ V ₂ /n ₂ RT ₂

P₁=pressure inside displacement sleeve 212 prior to being pressurized byair pump 232=14.7 psia

P₂=pressure inside displacement sleeve 212 after being pressurized byair pump 232=17.7 psia

n₁=quantity of air inside displacement sleeve 212 prior to beingpressurized by positive displacement air pump 227, where the length ofthe Displacement Sleeve is 32 inches and its diameter is 8 inches.

=1608 cubic inches

Solve for n₂=quantity of air inside displacement sleeve 212 after beingpressurized to 17.7 psia by air pump 232

For an empty Displacement Sleeve, V₁=V₂; and T₁=T₂,Therefore, P ₁ /n ₁ =P ₂ /n ₂

n₂=n(P₂/P₁)=(1608 cubic inches)(17.7 psia/14.7 psia)=1936 cubic inches.

Therefore, 1936 cu. in.−1608 cu. in.=328 cu. in. of air was added. Sincepump 232 pumps air at a rate of 6 cu. in./pump, it will take (328/6)pumps−55 pumps=to pressurize an empty Displacement Sleeve to 3 psig.

There is a linear relationship between the volume of space beingpressurized and the number of pumps that is required to pressurize thespace to a predetermined pressure, in this case 3 psig (17.7 psia). Forexample, if it takes 33 pumps to pressurized displacement sleeve 227 to3 psig, then the volume of the body part inside displacement sleeve=1608cubic inches−(33 pumps)(1608 cubic inches/55 pumps)=1608 cubicinches−964.8 cubic inches=643.2 cubic inches.

This relationship is determined by the manufacturer and the embodimentshown in FIG E is preferably sold with a Table I (FIG. 37). Table Icorrelates the number of pumps to the volume of the body part insidedisplacement sleeve 227.

Although the above-preferred embodiments have been described withspecificity, persons skilled in this art will recognize that manychanges to the specific embodiments disclosed above could be madewithout departing from the spirit of the invention. For example,although the above preferred embodiments disclosed how the presentinvention can be used to volumetrically measure the penis and thebreast, it could also be used to measure other body parts. For example,a weight lifter might be interested in measuring the volumetric changein the size of his arm after completing a rigorous workout. The presentinvention could easily be configured to accommodate the size of an arm.Also, another preferred embodiment could be utilized that is similar tothe embodiment shown in FIG. 12. In FIG. 19, sink 77 is portable and issold along with measuring device 11. Sink 77 includes scale 78.Therefore, the amount of fluid displaced can be measured inside sink 77utilizing scale 78 to determine the size of the penis. Examples of apreferred portable sink include a cup with a scale, a bowl with a scale,or a bucket with a scale. Also, although it was described how apreferred conversion factor for determining pdn is 1 pdn=2.36 cc, manyother conversion factors could also be utilized. For example, anotherpossible conversion factor is 1 pdn=10 cc. Utilizing this conversionfactor, an erect penis of 964 cc would have a pdn of 96.4. Or, theconversion factor could be 1.1 so that 1 pdn=1 cc. Regardless of theconversion factor, it is Applicant's belief that by referring to thescale as measuring in units of “penile displacement number” or “pdn”, auser will be more interested and more inclined to use the presentinvention. Also, although it was described how watertight barrier 5 ispreferably a condom, watertight barrier 5 can be fabricated from avariety of other fluid-tight materials. For example, it could beflexible rubber, flexible plastic or a flexible latex based membrane.Therefore, the attached claims and their legal equivalents shoulddetermine the scope of the invention.

1. A volumetric measuring device for measuring body parts, comprising:A. a fluid container filled with fluid, B. a body part opening forpermitting the insertion of a body part, C. a displaced fluid openingfor permitting the flow of fluid that has been displaced as a result ofthe insertion of said body part through said body part opening, D. afluid-tight barrier for completely covering said body part opening,wherein said fluid-tight barrier permits the insertion of said body partand into said body part opening while simultaneously maintaining afluid-tight seal around said body part opening, wherein the volumetricmeasurement of said body part is determined by measuring the amount ofsaid displaced fluid after the insertion of said body part through saidbody part opening.
 2. The volumetric measuring device as in claim 1,wherein said body part is an erect penis.
 3. The volumetric measuringdevice as in claim 1, wherein said body part is a human breast.
 4. Thevolumetric measuring device as in claim 1, wherein said fluid-tightbarrier is a condom.
 5. The volumetric measuring device as in claim 1,wherein the volume of said displaced fluid is measured in cubiccentimeters.
 6. The volumetric measuring device as in claim 1, whereinthe volume of said displaced fluid is measured in penile displacementnumber.
 7. The volumetric measuring device as in claim 6, wherein 100pdn is approximately equal to a penis having a length of approximately 6inches and a diameter of approximately 1.75 inches.
 8. The volumetricmeasuring device as in claim 7, wherein one said penile displacementnumber is approximately equal to 2.36 cubic centimeters.
 9. Thevolumetric measuring device as in claim 1, wherein said fluid-tightbarrier is a flexible latex based membrane.
 10. A volumetric measuringdevice for measuring body parts, comprising: A. a fill chamber,comprising an opening to allow fluid into said fill chamber, B. aninsertion chamber comprising a body part opening, wherein said insertionchamber receives fluid from said fill chamber, C. a fluid-tight barrierfor completely covering said body part opening, wherein said fluid-tightbarrier permits the insertion of said body part and into said body partopening while simultaneously maintaining a fluid-tight seal around saidbody part opening, and D. a drain chamber for receiving displaced fluidfrom said insertion chamber after said body part has been inserted intosaid insertion chamber, wherein the volumetric measurement of said bodypart is determined by measuring the amount of fluid remaining in thevolumetric measuring device after the insertion of said body partthrough said body part opening.
 11. The volumetric measuring device asin claim 10, wherein the volumetric measurement of said body part isdetermined by measuring the amount of fluid remaining in the fillchamber after the insertion of said body part through said body partopening.
 12. The volumetric measuring device as in claim 10, furthercomprising a first valve for controlling the flow of the fluid from saidfill chamber to said insertion chamber and comprising a second valve forcontrolling the flow of said fluid from said insertion chamber to saiddrain chamber
 13. A volumetric measuring device for measuring bodyparts, comprising: A. a displacement sleeve, B. a means for providing anair tight seal around a body part inserted into said displacementsleeve, C. a pump for pumping air into said displacement sleeve while abody part is inserted into said displacement sleeve, wherein thevolumetric measurement of said body part is determined by measuring theamount of air displaced as a result of said body part being insertedinto said displacement sleeve.
 14. The volumetric measuring device as inclaim 13, wherein said pump is an automatic pump that pumps air at aconstant rate.
 15. The volumetric measuring device as in claim 13wherein the measurement of said body part is determined by measuring theamount of time it takes to pressurize said displacement sleeve with abody part inserted to a predetermined pressure.
 16. The volumetricmeasuring device as in claim 13, wherein said pump is a manual pump thatpumps air at a constant rate.
 17. The volumetric measuring device as inclaim 13 wherein the measurement of said body part is determined bymeasuring the number of pumps it takes to pressurize said displacementsleeve with a body part inserted to a predetermined pressure.